Scat happens: spatiotemporal fluctuation in dingo scat collection rates
Benjamin L. AllenThe University of Queensland, School of Agriculture and Food Sciences, Gatton, Qld 4343, Australia. Current address: Vertebrate Pest Research Unit, NSW Department of Primary Industries, Broken Hill, NSW 2880, Australia. Email: benjamin.allen@dpi.nsw.gov.au
Australian Journal of Zoology 60(2) 137-140 https://doi.org/10.1071/ZO12038
Submitted: 30 August 2011 Accepted: 6 August 2012 Published: 17 September 2012
Abstract
The number of dingo (Canis lupus dingo and hybrids) scats collected from an area has been used as a measure of pack stability in order to make inferences about dingo pack structures and function. In doing so, some studies sampling different sites at different times/seasons have been forced to assume that scat collection rates vary little throughout the year in order to attribute observed site/treatment differences to the effect of interventions (e.g. lethal control), rather than natural spatiotemporal variation in scat densities. In this study, 4112 dingo scats systematically collected from adjacent dingo-baited and unbaited areas at three arid-zone sites on a regular basis over 2–4 years are used to test this assumption. Scat collection rates varied between treatments, sites and surveys, with substantial differences occurring within a few weeks or months. Similar temporal trends between treatments at each site demonstrated that scat collection rates fluctuated independently of dingo control. It was concluded that observations of different scat collection rates between different sites sampled at different times may simply reflect normal spatiotemporal variability in scat densities, which may not reflect absolute dingo abundance.
Additional keywords: Canis lupus dingo, defaecation, lethal control, pack structure, population indexing, scent-marking, social stability.
References
Allen, B. L. (2010a). Did dingo control cause the elimination of kowaris through mesopredator release effects? A response to Wallach and O’Neill (2009). Animal Biodiversity and Conservation 32, 1–4.Allen, B. L. (2010b). Skin and bone: observations of dingo scavenging during a chronic food shortage. Australian Mammalogy 32, 207–208.
| Skin and bone: observations of dingo scavenging during a chronic food shortage.Crossref | GoogleScholarGoogle Scholar |
Allen, B. L. (2011). A comment on the distribution of historical and contemporary livestock grazing across Australia: implications for using dingoes for biodiversity conservation. Ecological Management & Restoration 12, 26–30.
| A comment on the distribution of historical and contemporary livestock grazing across Australia: implications for using dingoes for biodiversity conservation.Crossref | GoogleScholarGoogle Scholar |
Allen, B. L. (2012a). Do desert dingoes drink daily? Visitation rates at remote waterpoints in the Strzelecki Desert. Australian Mammalogy , .
| Do desert dingoes drink daily? Visitation rates at remote waterpoints in the Strzelecki Desert.Crossref | GoogleScholarGoogle Scholar |
Allen, B. L. (2012b). The effect of lethal control on the conservation values of Canis lupus dingo. In ‘Wolves: Biology, Conservation, and Management’. (Eds A. P. Maia and H. F. Crussi.) pp. 79–108. (Nova Publishers: New York.)
Allen, B. L., and Fleming, P. J. S. (2012). Reintroducing the dingo: the risk of dingo predation to threatened vertebrates of western New South Wales. Wildlife Research 39, 35–50.
| Reintroducing the dingo: the risk of dingo predation to threatened vertebrates of western New South Wales.Crossref | GoogleScholarGoogle Scholar |
Allen, B. L., and Leung, L. K.-P. (2012). Assessing predation risk to threatened fauna from their prevalence in predator scats: dingoes and rodents in arid Australia. PLoS ONE 7, e36426.
| Assessing predation risk to threatened fauna from their prevalence in predator scats: dingoes and rodents in arid Australia.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XntlWgsrg%3D&md5=34f83852ecc37a9de4bbf6894b00ecc3CAS |
Allen, B. L., Engeman, R. M., and Allen, L. R. (2011a). Wild dogma I: an examination of recent “evidence” for dingo regulation of invasive mesopredator release in Australia. Current Zoology 57, 568–583.
Allen, B. L., Read, J. L., and Medlin, G. (2011b). Additional records of small mammals in northern South Australia. Australian Mammalogy 33, 68–72.
| Additional records of small mammals in northern South Australia.Crossref | GoogleScholarGoogle Scholar |
Allen, L. R. (2000). Measuring predator control effectiveness: reducing numbers may not reduce predator impact. In ‘19th Vertebrate Pest Conference, 2000, San Diego, California’. (Eds T. P. Salmon and A. C. Crabb.) pp. 284–289.
APVMA. (2008). Review findings for sodium monofluoroacetate: the reconsideration of registrations of products containing sodium monofluoroacetate and approvals of their associated labels. Environmental Assessment. Australian Pesticides and Veterinary Medicines Authority, Canberra
Carwardine, J., O’Connor, T., Legge, S., Mackey, B., Possingham, H. P., and Martin, T. G. (2011). Priority threat management to protect Kimberley wildlife. CSIRO Ecosystem Sciences, Brisbane
Corbett, L. K. (2001). ‘The Dingo in Australia and Asia.’ 2nd edn. (J. B. Books: Adelaide.)
Coutts-Smith, A. J., Mahon, P. S., Letnic, M., and Downey, P. O. (2007). The threat posed by pest animals to biodiversity in New South Wales. Invasive Animals Cooperative Research Centre, Canberra.
Fleming, P., Corbett, L., Harden, R., and Thomson, P. (2001). ‘Managing the Impacts of Dingoes and other Wild Dogs.’ (Bureau of Rural Sciences: Canberra.)
Glen, A. S., Gentle, M. N., and Dickman, C. R. (2007). Non-target impacts of poison baiting for predator control in Australia. Mammal Review 37, 191–205.
| Non-target impacts of poison baiting for predator control in Australia.Crossref | GoogleScholarGoogle Scholar |
Hewitt, L. (2009). Major economic costs associated with wild dogs in the Queensland grazing industry. Agforce, Brisbane.
Letnic, M., Ritchie, E. G., and Dickman, C. R. (2012). Top predators as biodiversity regulators: the dingo Canis lupus dingo as a case study. Biological Reviews of the Cambridge Philosophical Society 87, 390–413.
| Top predators as biodiversity regulators: the dingo Canis lupus dingo as a case study.Crossref | GoogleScholarGoogle Scholar |
Mitchell, B., and Balogh, S. (2007). Monitoring techniques for vertebrate pests: wild dogs. NSW Department of Primary Industries, Bureau of Rural Sciences, Orange.
Purcell, B.V. (2010). ‘Dingo.’ (CSIRO Publishing: Melbourne.)
Thomson, P. C. (1984). Dingoes and sheep in pastoral areas. Journal of Agriculture 25, 27–31.
Wallach, A. D., Ritchie, E. G., Read, J., and O’Neill, A. J. (2009). More than mere numbers: the impact of lethal control on the stability of a top-order predator. PLoS ONE 4, e6861.
| More than mere numbers: the impact of lethal control on the stability of a top-order predator.Crossref | GoogleScholarGoogle Scholar |
Wallach, A. D., Johnson, C. N., Ritchie, E. G., and O’Neill, A. J. (2010). Predator control promotes invasive dominated ecological states. Ecology Letters 13, 1008–1018.
Whitehead, H. (2008). ‘Analyzing Animal Societies: Quantitative Methods for Vertebrate Social Analysis.’ (University of Chicago Press: Chicago.)
